Forest Tree Associated Bacterial Diffusible and Volatile Organic Compounds against Various Phytopathogenic Fungi
Plant growth-promoting rhizobacteria (PGPR) can potentially be used as an alternative strategy to control plant diseases. In this study, strain ST–TJ4 isolated from the rhizosphere soil of a healthy poplar was found to have a strong antifungal activity against 11 phytopathogenic fungi in agriculture...
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MDPI AG
2020-04-01
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| Series: | Microorganisms |
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| Online Access: | https://www.mdpi.com/2076-2607/8/4/590 |
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| author | Wei-Liang Kong Pu-Sheng Li Xiao-Qin Wu Tian-Yu Wu Xiao-Rui Sun |
| author_facet | Wei-Liang Kong Pu-Sheng Li Xiao-Qin Wu Tian-Yu Wu Xiao-Rui Sun |
| author_sort | Wei-Liang Kong |
| collection | DOAJ |
| description | Plant growth-promoting rhizobacteria (PGPR) can potentially be used as an alternative strategy to control plant diseases. In this study, strain ST–TJ4 isolated from the rhizosphere soil of a healthy poplar was found to have a strong antifungal activity against 11 phytopathogenic fungi in agriculture and forestry. Strain ST–TJ4 was identified as <i>Pseudomonas</i> sp. based on 16S rRNA-encoding gene sequences. The bacterium can produce siderophores, cellulase, and protease, and has genes involved in the synthesis of phenazine, 1–phenazinecarboxylic acid, pyrrolnitrin, and hydrogen cyanide. Additionally, the volatile compounds released by strain ST–TJ4 can inhibit the mycelial growth of plant pathogenic fungi more than diffusible substances can. Based on volatile compound profiles of strain ST–TJ4 obtained from headspace collection and GC–MS/MS analysis, 1-undecene was identified. In summary, the results suggested that <i>Pseudomonas</i> sp. ST–TJ4 can be used as a biocontrol agent for various plant diseases caused by phytopathogenic fungi. |
| first_indexed | 2024-03-10T20:21:59Z |
| format | Article |
| id | doaj.art-2f1790665517457683a4ac1860a2b59e |
| institution | Directory Open Access Journal |
| issn | 2076-2607 |
| language | English |
| last_indexed | 2024-03-10T20:21:59Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Microorganisms |
| spelling | doaj.art-2f1790665517457683a4ac1860a2b59e2023-11-19T22:03:32ZengMDPI AGMicroorganisms2076-26072020-04-018459010.3390/microorganisms8040590Forest Tree Associated Bacterial Diffusible and Volatile Organic Compounds against Various Phytopathogenic FungiWei-Liang Kong0Pu-Sheng Li1Xiao-Qin Wu2Tian-Yu Wu3Xiao-Rui Sun4Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, ChinaPlant growth-promoting rhizobacteria (PGPR) can potentially be used as an alternative strategy to control plant diseases. In this study, strain ST–TJ4 isolated from the rhizosphere soil of a healthy poplar was found to have a strong antifungal activity against 11 phytopathogenic fungi in agriculture and forestry. Strain ST–TJ4 was identified as <i>Pseudomonas</i> sp. based on 16S rRNA-encoding gene sequences. The bacterium can produce siderophores, cellulase, and protease, and has genes involved in the synthesis of phenazine, 1–phenazinecarboxylic acid, pyrrolnitrin, and hydrogen cyanide. Additionally, the volatile compounds released by strain ST–TJ4 can inhibit the mycelial growth of plant pathogenic fungi more than diffusible substances can. Based on volatile compound profiles of strain ST–TJ4 obtained from headspace collection and GC–MS/MS analysis, 1-undecene was identified. In summary, the results suggested that <i>Pseudomonas</i> sp. ST–TJ4 can be used as a biocontrol agent for various plant diseases caused by phytopathogenic fungi.https://www.mdpi.com/2076-2607/8/4/590diffusible substancesvolatile compoundsphytopathogenic fungi<i>Pseudomonas</i> sp. |
| spellingShingle | Wei-Liang Kong Pu-Sheng Li Xiao-Qin Wu Tian-Yu Wu Xiao-Rui Sun Forest Tree Associated Bacterial Diffusible and Volatile Organic Compounds against Various Phytopathogenic Fungi Microorganisms diffusible substances volatile compounds phytopathogenic fungi <i>Pseudomonas</i> sp. |
| title | Forest Tree Associated Bacterial Diffusible and Volatile Organic Compounds against Various Phytopathogenic Fungi |
| title_full | Forest Tree Associated Bacterial Diffusible and Volatile Organic Compounds against Various Phytopathogenic Fungi |
| title_fullStr | Forest Tree Associated Bacterial Diffusible and Volatile Organic Compounds against Various Phytopathogenic Fungi |
| title_full_unstemmed | Forest Tree Associated Bacterial Diffusible and Volatile Organic Compounds against Various Phytopathogenic Fungi |
| title_short | Forest Tree Associated Bacterial Diffusible and Volatile Organic Compounds against Various Phytopathogenic Fungi |
| title_sort | forest tree associated bacterial diffusible and volatile organic compounds against various phytopathogenic fungi |
| topic | diffusible substances volatile compounds phytopathogenic fungi <i>Pseudomonas</i> sp. |
| url | https://www.mdpi.com/2076-2607/8/4/590 |
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